Installation

1. Install dependencies

# install dependencies, if needed
sudo apt update && sudo apt upgrade -y
sudo apt install curl git wget htop tmux build-essential jq make lz4 gcc unzip -y

1. Install Go

# install go, if needed
cd $HOME
VER="1.22.3"
wget "https://golang.org/dl/go$VER.linux-amd64.tar.gz"
sudo rm -rf /usr/local/go
sudo tar -C /usr/local -xzf "go$VER.linux-amd64.tar.gz"
rm "go$VER.linux-amd64.tar.gz"
[ ! -f ~/.bash_profile ] && touch ~/.bash_profile
echo "export PATH=$PATH:/usr/local/go/bin:~/go/bin" >> ~/.bash_profile
source $HOME/.bash_profile
[ ! -d ~/go/bin ] && mkdir -p ~/go/bin

1. Download tac build binary

git clone https://github.com/TacBuild/tacchain
cd tacchain
make install

1. Set variable

# set vars
echo "export WALLET="wallet"" >> $HOME/.bash_profile
echo "export MONIKER="TacBuildNode"" >> $HOME/.bash_profile
echo "export TAC_CHAIN_ID="tacchain_2390-1"" >> $HOME/.bash_profile
echo "export TAC_PORT="26"" >> $HOME/.bash_profile
source $HOME/.bash_profile

1. Init tac chain

tacchaind init testnode --chain-id $TAC_CHAIN_ID --home $HOME/.tacchaind
sed -i -e "s|^node *=.*|node = \"tcp://localhost:${TAC_PORT}657\"|" $HOME/.tacchaind/config/client.toml

1. Config your node

# download genesis file
curl https://newyork-inap-72-251-230-233.ankr.com/tac_tacd_testnet_full_tendermint_rpc_1/genesis | jq '.result.genesis' > $HOME/.tacchaind/config/genesis.json

# set peers only
PEERS="[email protected]:45120,[email protected]:45120,[email protected]:45110,[email protected]:45110"

sed -i -e "/^\[p2p\]/,/^\[/{s/^[[:space:]]*persistent_peers *=.*/persistent_peers = \"$PEERS\"/}" $HOME/.tacchaind/config/config.toml

# set custom ports in app.toml
sed -i.bak -e "s%:1317%:${TAC_PORT}317%g;
s%:8080%:${TAC_PORT}080%g;
s%:9090%:${TAC_PORT}090%g;
s%:9091%:${TAC_PORT}091%g;
s%:8545%:${TAC_PORT}545%g;
s%:8546%:${TAC_PORT}546%g;
s%:6065%:${TAC_PORT}065%g" $HOME/.tacchaind/config/app.toml

# set custom ports and timeout_commit in config.toml file
sed -i.bak -e "s%:26658%:${TAC_PORT}658%g;
s%:26657%:${TAC_PORT}657%g;
s%:6060%:${TAC_PORT}060%g;
s%:26656%:${TAC_PORT}656%g;
s%^external_address = \"\"%external_address = \"$(wget -qO- eth0.me):${TAC_PORT}656\"%;
s%:26660%:${TAC_PORT}660%g;
s/^timeout_commit *=.*/timeout_commit = \"3s\"/" $HOME/.tacchaind/config/config.toml

# config pruning
sed -i -e "s/^pruning *=.*/pruning = \"custom\"/" $HOME/.tacchaind/config/app.toml 
sed -i -e "s/^pruning-keep-recent *=.*/pruning-keep-recent = \"100\"/" $HOME/.tacchaind/config/app.toml
sed -i -e "s/^pruning-interval *=.*/pruning-interval = \"19\"/" $HOME/.tacchaind/config/app.toml

1. Create tac chain service using systemd

sudo tee /etc/systemd/system/tacchaind.service > /dev/null <<EOF
[Unit]
Description=Tac Chain node
After=network-online.target
[Service]
User=$USER
WorkingDirectory=$HOME/.tacchaind
ExecStart=$(which tacchaind) start --home $HOME/.tacchaind --chain-id tacchain_2390-1
Restart=on-failure
RestartSec=5
LimitNOFILE=65535
[Install]
WantedBy=multi-user.target
EOF

1. Enable and Start service:

# enable and start service
sudo systemctl daemon-reload
sudo systemctl enable tacchaind
sudo systemctl restart tacchaind && sudo journalctl -u tacchaind -fo cat

1. Create wallet

# to create a new wallet, use the following command. don’t forget to save the mnemonic
tacchaind keys add $WALLET

# to restore existing wallet, use the following command
tacchaind keys add $WALLET --recover

# save wallet and validator address
WALLET_ADDRESS=$(tacchaind keys show $WALLET -a)
VALOPER_ADDRESS=$(tacchaind keys show $WALLET --bech val -a)
echo "export WALLET_ADDRESS=$WALLET_ADDRESS" >> $HOME/.bash_profile
echo "export VALOPER_ADDRESS=$VALOPER_ADDRESS" >> $HOME/.bash_profile
source $HOME/.bash_profile

# check sync status, once your node is fully synced, the output from above will print "false"
tacchaind status 2>&1 | jq 

# before creating a validator, you need to fund your wallet and check balance
tacchaind query bank balances $WALLET_ADDRESS

1. Query balance

tacchaind query bank balances $WALLET_ADDRESS

1. Check status

tacchaind status 2>&1 | jq

1. Create Validator

cd $HOME
# Create validator.json file
echo "{\"pubkey\":{\"@type\":\"/cosmos.crypto.ed25519.PubKey\",\"key\":\"$(tacchaind tendermint show-validator | grep -Po '\"key\":\s*\"\K[^"]*')\"},
    \"amount\": \"1000000utac\",
    \"moniker\": \"test\",
    \"identity\": \"\",
    \"website\": \"\",
    \"security\": \"\",
    \"details\": \"Powered by CerberusNode ❤️\",
    \"commission-rate\": \"0.1\",
    \"commission-max-rate\": \"0.2\",
    \"commission-max-change-rate\": \"0.01\",
    \"min-self-delegation\": \"1\"
}" > validator.json
# Create a validator using the JSON configuration
tacchaind tx staking create-validator validator.json \
    --from $WALLET \
    --chain-id $TAC_CHAIN_ID \
	--gas auto --gas-adjustment 1.5